This article was automatically generated by Dow Jones using technology from Automated Insights.

Shares of Gartner Inc. shed 4.6% to $186.42 on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index falling 0.4% to 7,718.60 and Dow Jones Industrial Average falling 0.5% to 53,414.25.

Gartner Inc. closed 29.9% short of its 52-week high of $265.85, which the company achieved on September 26th.

The stock underperformed when compared to some of its peers, as Trade Desk Inc. Cl A fell 4.4% to $14.43, IQVIA Holdings Inc. fell 1.4% to $267.77, and Omnicom Group Inc. fell 2.49% to $82.62.

Trading volume totaled 767,600, compared to the 50-day average of 1.4 million.

Data source: Dow Jones Market Data, FactSet